Function pointer to a function to perform the transform.
@note Using a different context than the one allocated during av_tx_init()
is not allowed.
@param s the transform context
@param out the output array
@param in the input array
@param stride the input or output stride in bytes
The out and in arrays must be aligned to the maximum required by the CPU
architecture.
The stride must follow the constraints the transform type has specified.
Function pointer to a function to perform the transform.
@note Using a different context than the one allocated during av_tx_init() is not allowed.
@param s the transform context @param out the output array @param in the input array @param stride the input or output stride in bytes
The out and in arrays must be aligned to the maximum required by the CPU architecture. The stride must follow the constraints the transform type has specified.